题目内容
阅读短文，根据内容，选出最佳选项。
Do you know something about dolphins? Dolphins live in the ocean and there are more than thirty different kinds of these beautiful animals. Some of them live in small groups of just a few members. Others live in very large groups.
Dolphins use loud noises to communicate(交流) with each other. As for food, dolphins feed on small fish and other small sea animals. They can swim very fast-up to 40 kilometers per hour.
Dolphins enjoy being with people. They like to make friends with people. Dolphins also help swimmers or sailors(海员) in trouble. There are many stories about this. Dolphins are very clever. You can see them in some parks where they play games with visitors. Some can even play ping- pong，Dolphins are so lovely, but some of them live in bad living conditions now.
They can't get enough food, so they are becoming fewer and fewer in number. Even worse, some people kill them for money. Therefore(因此), we should take actions to protect the environment and our friend dolphins!
1.We learn that dolphins_________according to the passage.
A.live in groups B.feed on sea plants C.swim slowly
2.Dolphins can talk to each other __________ .
A.with their eyes B.by using loud noises C.by singing songs
3.We can hear many stories about dolphins_______.
A.helping swimmers B.killing sailors C.playing sports with visitors
4.Which of the following is NOT true?
A.There are fewer and fewer dolphins.
B.Dolphins can't get enough food.
C.Dolphins are very clever but lazy.
5.We can_______to protect dolphins.
A.keep them in zoos B.kill lots of fish C.keep the ocean water clean
